Star X and Star Y Are 5 AU Apart from Each

question 81

Multiple Choice

Star X and star Y are 5 AU apart from each other.Star X is four times as massive as star Y.The center of mass of this system is ________ AU away from star X and ________ AU away from star Y.

• A) 3; 2
• B) 2; 3
• C) 2.5; 2.5
• D) 1; 4
• E) 4; 1

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Definitions:

Visual Perspicacity

The ability to observe and understand visual information with sharpness and clarity.

Optic Chiasma

The X-shaped structure formed by the crossing over of the optic nerves in the brain, which allows visual information from each eye to be processed on both sides of the brain.

Blind Spot

Area in the retina where the axons of the three layers of retinal cells exit the eye to form the optic nerve; insensitive to light.

Fovea

A small depression in the retina of the eye where visual acuity is highest, due to the high concentration of cones and absence of rods.